System of Measurement System of Measurement |
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Drill Bit Size Drill Bit Size | Show |
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Drill Bit Size Drill Bit Size | Hide |
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For Use On For Use On |
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Shank Type Shank Type |
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| Round | Reduced Round |
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| Morse Taper | Square |
Length Class Length Class |
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| Extended Length |
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| Reduced Shank Length |
Decimal Size Equivalent Decimal Size Equivalent |
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Material Material |
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Finish Finish |
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Point Angle Point Angle |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Flute Direction Flute Direction |
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| Right Hand |
Individual/Set Individual/Set |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Bit Style Bit Style |
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 | Spiral Flute |
Morse Taper Number Morse Taper Number |
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Morse Taper Diameter Morse Taper Diameter |
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Pipe Size Pipe Size |
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Thread Type Thread Type |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Extended-Length Drill Bits
Access hard-to-reach spots and drill deep holes.
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 29/32" | 0.9063" | 10" | 4.76" | Round | 29/32" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
1/2" Diameter Reduced-Shank Drill Bits
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.
For technical drawings and 3-D models, click on a part number.
Cobalt Steel 1/2" Diameter Reduced-Shank Drill Bits
With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. A split point keeps the bit centered without a pilot hole. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Shank | |||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Cobalt Steel | |||||||||
| 29/32" | 0.9063" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
| 29/32" | 0.9063" | 6" | 3.13" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 000000 |
Carbide-Tipped 1/2" Diameter Reduced-Shank Drill Bits
More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits maintain a sharper, harder edge at high temperatures. The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 29/32" | 0.9063" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
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| Drill Bit Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 29/32" | 0.9063" | 3 | 0.938" | 10 3/4" | 4.76" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 000000 |
Combination Drill Bit/Pipe and Conduit Thread Taps
Drill and thread holes for pipe and conduit without switching tools. Made of uncoated high-speed steel, these tools are for use on most metal and plastic. Their right-hand spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. With a square shank, they're compatible with tap wrenches and tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping of through holes.
Drill Bit | Plug Chamfer | |||||||||
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| Pipe Size | Thread Type | Threads Per Inch | Thread Lg. | Overall Lg. | Size | Decimal Size Equivalent | Point Angle | No. of Flutes | Each | |
Uncoated High-Speed Steel | ||||||||||
| 3/4 | NPTF | 14 | 1 3/8" | 4 9/16" | 29/32" | 0.9063" | 118° | 6 | 0000000 | 0000000 |